Sr. Power Electronics Design Engineer

Ayr Energy, Inc.; Mountain View (CA); On-site; USD 140,000 - 210,000; Full time

Benefits offered by this job

Collaborative work environment

Challenging problems to solve

Competitive benefits including medical

Equity package

Job summary

Ayr Energy, Inc. is seeking a senior power electronics engineer to architect, design, and industrialize high-performance power converters for grid and energy applications.

You will own hardware from spec through production and collaborate across mechanical, thermal, firmware, and manufacturing teams to ensure reliable, scalable solutions. The role requires deep expertise in power topologies, HV components, magnetics, and embedded control, with a track record of bringing complex hardware to

Qualifications

• Strong understanding of power converter topologies – both theory and practical design.
• 5+ years of hands-on hardware experience in design and industrialization of power converter products.
• Experience with high voltage power semiconductor selection (IGBTs, Si/SiC/GaN MOSFETs, and diodes).
• Knowledge of magnetics (inductors, transformers) and capacitors for high voltage/high frequency power conversion.
• Knowledge of basic control theory and experience with embedded programming.
• Extensive hands-on experience with advanced digital and HV circuit bring-up and troubleshooting.
• Awareness of UL and CE electrical safety requirements; EMC requirements relevant to the design of power converters is a plus.
• Excellent written and verbal communications in English.

Responsibilities

• Architect, design, build and industrialize power converter hardware for grid and energy product applications.
• Architect and model new power electronics topologies with superior performance.
• Own hardware end-to-end – from specification to design, prototype, reliability validation and production.
• Collaborate with mechanical, thermal, PCB layout, firmware, manufacturing and testing teams to validate Ayr products.
• Define and execute validation test plans including structural, thermal, and environmental testing.

Skills

First Principles Thinking

Power converter topologies

Hardware design

HV power semiconductors

Magnetics & capacitors

Control theory

Embedded programming

HV circuit bring-up

Electrical safety (UL/CE)

English communication

Job description

As a senior power electronics engineer, you’ll shape the architecture and delivery of high-performance converters and protection systems, driving innovation in efficiency, reliability, and manufacturability. Our integrated model of combining advanced engineering, tight supply-chain control, and exceptional service empowers you to build resilient solutions that restore reliability and control to the operators who keep the world energized.

What you'll do

• Architect, design, build and industrialize power converter hardware for use in grid and energy product applications
• Architect and model new power electronics topologies that have superior performance
• Have start to finish ownership of hardware – from specification to design, prototype, reliability validation and production
• Collaborate cross-functionally with mechanical, thermal, PCB layout, firmware, manufacturing and testing teams to validate and manufacture Ayr products
• Define and execute validation test plans including structural, thermal, and environmental testing.

Qualifications

• First Principles Thinking
• Strong understanding of power converter topologies – both theory and practical design
• 5 or more years of relevant hands-on hardware experience in design and industrialization of power converter products
• Experience with high voltage power semiconductor selection (IGBTs, Si/SiC/GaN MOSFET’s, and diodes), design of gate drive and analog/digital sensing circuits
• Solid understanding of the theory and application of magnetics (inductors, transformers) and capacitors (film, ceramic and electrolytic) for high voltage and high frequency power conversion
• Knowledge of basic control theory and experience with embedded programming
• Extensive hands-on experience with advanced digital and HV circuit bring-up and troubleshooting
• Awareness of UL and CE electrical safety requirements; EMC requirements relevant to the design of power converters is a plus
• Excellent written and verbal communications in English

What we offer

• Collaborative work environment
• Challenging problems to solve
• Competitive benefits including medical, dental, and vision
• Equity package

Ayr designs and manufactures critical power grid equipment including power transformers, distribution transformers, special-purpose transformers, high-voltage circuit breakers, and medium-voltage switchgear. They serve markets such as renewables, data centers, utilities, oil & gas, and industrial sectors. They position themselves as partners in power projects, offering lifecycle support and working to deliver faster than average industry timelines.